Arrrg... Same problem on Windows 10 64 bit. This is an HP I3 with Intel graphics. I updated to 1.4.0 and checked my graphics driver was the latest. Just loading the Example/Cylinder.stl show sthe problem. Here's my log but I didn't see any hints on how to fix this:
2019/07/04-21:25:33: applicationDirPath(): "C:/Program Files/ChiTuBox64 1.4"
2019/07/04-21:25:33: currentPath(): "C:/Program Files/ChiTuBox64 1.4"
2019/07/04-21:25:33: search path: "C:/Program Files/ChiTuBox64 1.4/resource"
2019/07/04-21:25:33: resource path: "C:/Program Files/ChiTuBox64 1.4/resource"
2019/07/04-21:25:33: config path: "C:/Users/User/AppData/Local/ChiTuBox"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/global.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/resin/grey_WanHao D8.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/@default.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/AnyCubic_Photo-s.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/AnyCubic_Photo.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/ELEGOO_MARS.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/Orbeat_D100.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/Phrozen_Shuffle.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/SparkMaker.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/SparkMaker_FHD.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/UltraBot+.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/UltraBot.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/WanHao_D7.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/WanHao_D8.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/WanHao_RG1.cfg"
2019/07/04-21:25:33: load config: "C:/Program Files/ChiTuBox64 1.4/resource/machine/phrozen_Shuffle_XL.cfg"
2019/07/04-21:25:33: load config: "C:/Users/User/AppData/Local/ChiTuBox/global.cfg"
2019/07/04-21:25:33: Cann't load file: "C:/Users/User/AppData/Local/ChiTuBox/global.cfg"
2019/07/04-21:25:34: Software Version: ChiTuBox V1.4.0
2019/07/04-21:25:34: Operation system "windows 10"
2019/07/04-21:25:34: applicationFilePath(): "C:/Program Files/ChiTuBox64 1.4/ChiTuBox.exe"
2019/07/04-21:25:34: screenRect QRect(0,0 1600x900) available: QRect(0,0 1600x860)
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/cylinder32.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 124
2019/07/04-21:25:34: size X: 2 Y: 2 Z: 2
2019/07/04-21:25:34: center X: 0 Y: 0 Z: 1
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/cylinder16.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 60
2019/07/04-21:25:34: size X: 2 Y: 2 Z: 2
2019/07/04-21:25:34: center X: 0 Y: 0 Z: 1
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/SUPPORT_sphere.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 480
2019/07/04-21:25:34: size X: 40 Y: 40 Z: 40
2019/07/04-21:25:34: center X: 0 Y: 0 Z: 0
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/SUPPORT_BOTTOM_Cone.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 776
2019/07/04-21:25:34: size X: 1.00499 Y: 1.00499 Z: 1
2019/07/04-21:25:34: center X: -5.7 Y: -0.5 Z: 0.5
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/SUPPORT_BOTTOM_Skate.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 1042
2019/07/04-21:25:34: size X: 0.998199 Y: 1.3912 Z: 1.00001
2019/07/04-21:25:34: center X: 75 Y: 75 Z: 0.500005
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/SUPPORT_Cube.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 12
2019/07/04-21:25:34: size X: 1 Y: 1 Z: 1
2019/07/04-21:25:34: center X: 6 Y: 0 Z: 0.5
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/cylinder8.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 28
2019/07/04-21:25:34: size X: 2 Y: 2 Z: 2
2019/07/04-21:25:34: center X: 0 Y: 0 Z: 1
2019/07/04-21:25:34: @@@@ "English" "UnitedStates" "Default" "en" QLocale::Country(UnitedStates) 12
Warning: QSslSocket: cannot resolve SSL_CONF_CTX_new 0
Warning: QSslSocket: cannot resolve SSL_CONF_CTX_free 0
Warning: QSslSocket: cannot resolve SSL_CONF_CTX_set_ssl_ctx 0
Warning: QSslSocket: cannot resolve SSL_CONF_CTX_set_flags 0
Warning: QSslSocket: cannot resolve SSL_CONF_CTX_finish 0
Warning: QSslSocket: cannot resolve SSL_CONF_cmd 0
Warning: QSslSocket: cannot resolve SSL_set_alpn_protos 0
Warning: QSslSocket: cannot resolve SSL_CTX_set_alpn_select_cb 0
Warning: QSslSocket: cannot resolve SSL_get0_alpn_selected 0
2019/07/04-21:25:34: updateLangSel: ("zh_TW", "zh_CN", "en", "ko", "gr", "ru", "tr", "ptbr", "de", "it", "fr", "es")
2019/07/04-21:25:34: "C:/Users/User/AppData/Local/ChiTuBox/plugin/"
2019/07/04-21:25:34: "C:/Program Files/ChiTuBox64 1.4/resource/plugin/"
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/high_precision_sphere.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 12600
2019/07/04-21:25:34: size X: 24.9918 Y: 24.9918 Z: 25
2019/07/04-21:25:34: center X: 0 Y: 0 Z: 0
2019/07/04-21:25:34: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/support/SUPPORT_sphere.stl" suffix: "stl"
2019/07/04-21:25:34: ----------faceCount: 480
2019/07/04-21:25:34: size X: 40 Y: 40 Z: 40
2019/07/04-21:25:34: center X: 0 Y: 0 Z: 0
2019/07/04-21:25:34: current font: "Microsoft YaHei"
2019/07/04-21:25:35: default font: "MS Shell Dlg 2"
2019/07/04-21:25:35: =========================== "en" "C:/Program Files/ChiTuBox64 1.4/resource/i18n/"
2019/07/04-21:25:38: currConfigRoot: "C:/Users/User/AppData/Local/ChiTuBox"
2019/07/04-21:25:38: currResouceRoot: "C:/Program Files/ChiTuBox64 1.4/resource/"
2019/07/04-21:25:38: digHole 2 0 true
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
2019/07/04-21:25:40: updateLangSel: ("zh_TW", "zh_CN", "en", "ko", "gr", "ru", "tr", "ptbr", "de", "it", "fr", "es")
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
2019/07/04-21:25:40: lastFileName: ""
2019/07/04-21:25:41: =======Version: "450" valid: true
2019/07/04-21:25:41: ==bSupport_GL_EXT: false
2019/07/04-21:25:41: GPU vendor: Intel
2019/07/04-21:25:41: GPU version: 4.5.0 - Build 22.20.16.4749
2019/07/04-21:25:41: GPU render: Intel(R) HD Graphics 620
2019/07/04-21:25:41: core: true
2019/07/04-21:25:59: fileName: "C:/Program Files/ChiTuBox64 1.4/resource/examples/cylinder.STL" suffix: "stl"
2019/07/04-21:25:59: ready to load: "C:/Program Files/ChiTuBox64 1.4/resource/examples/cylinder.STL"
2019/07/04-21:25:59: ----------faceCount: 244
2019/07/04-21:25:59: size X: 30 Y: 30 Z: 30
2019/07/04-21:25:59: center X: 0 Y: 6.86163 Z: 15
Warning: libpng warning: iCCP: known incorrect sRGB profile 0
2019/07/04-21:26:29: save to file: "C:/Users/User/AppData/Local/ChiTuBox/global.cfg"
2019/07/04-21:26:29: save to file: "C:/Users/User/AppData/Local/ChiTuBox/machine/0.cfg"
2019/07/04-21:26:29: save to file: "C:/Users/User/AppData/Local/ChiTuBox/resin/normal_0.cfg"